Android：如何對包/意圖值使用if語句？

Question

一個簡單的問題。 在我的應用程序中，用戶經歷了多個活動，為他們提供了單選按鈕供您選擇..在最后一個活動中，根據那里的選項，將顯示他們所處的角色等。現在的問題是我不知道不知道如何編寫代碼來做到這一點。 這是我所擁有的

第一次活動

public class Quiz1 extends Activity {

Button btn;
RadioGroup rg1;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.quiz1);

    btn = (Button) findViewById(R.id.nextBtn1);
    rg1= (RadioGroup) findViewById(R.id.rg1);

    btn.setOnClickListener(new View.OnClickListener() {
        @Override

        public void onClick(View v) {
            if (rg1.getCheckedRadioButtonId() == -1) {

                Toast.makeText(getApplicationContext(), "Please select an answer",
                        Toast.LENGTH_SHORT).show();
            } else{
                Intent intent = new Intent(getApplicationContext(), Quiz2.class);
                Bundle bundle = getIntent().getExtras();

                int id = rg1.getCheckedRadioButtonId();
                RadioButton radioButton = (RadioButton) findViewById(id);
                bundle.putString("rg1", radioButton.getText().toString());
                intent.putExtras(bundle);
                startActivity(intent);

            }

        }

    });
  }
}

第二次活動

Button btn;
RadioGroup rg2;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.quiz2);


    btn = (Button) findViewById(R.id.nextBtn2);
    rg2= (RadioGroup) findViewById(R.id.rg2);

    btn.setOnClickListener(new View.OnClickListener() {
        @Override

        public void onClick(View v) {
            if (rg2.getCheckedRadioButtonId() == -1) {

                Toast.makeText(getApplicationContext(), "Please select an answer",
                        Toast.LENGTH_SHORT).show();
            } else{
                Intent intent = new Intent(getApplicationContext(), Quiz3.class);
                Bundle bundle = getIntent().getExtras();
                int id = rg2.getCheckedRadioButtonId();
                RadioButton radioButton = (RadioButton) findViewById(id);
                bundle.putString("rg2", radioButton.getText().toString());
                intent.putExtras(bundle);
                startActivity(intent);

            }

        }

    });
  }
}

持續進行約7項活動

最終活動（顯示結果和角色）

public class Final1 extends Activity {

Button btnRestart;
Button btnShare;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.final1);

    Bundle bundle = getIntent().getExtras();

    TextView textView = (TextView)findViewById(R.id.txt);
    textView.setText(bundle.getCharSequence("rg"));

    TextView textView1 = (TextView)findViewById(R.id.txt1);
    textView1.setText(bundle.getCharSequence("rg1"));

    TextView textView2 = (TextView)findViewById(R.id.txt2);
    textView2.setText(bundle.getCharSequence("rg2"));

    TextView textView3 = (TextView)findViewById(R.id.txt3);
    textView3.setText(bundle.getCharSequence("rg3"));

    TextView textView4 = (TextView)findViewById(R.id.txt4);
    textView4.setText(bundle.getCharSequence("rg4"));

    TextView textView5 = (TextView)findViewById(R.id.txt5);
    textView5.setText(bundle.getCharSequence("rg5"));

    TextView textView6 = (TextView)findViewById(R.id.txt6);
    textView6.setText(bundle.getCharSequence("rg6"));

    btnRestart = (Button)findViewById(R.id.restartBtn);

    btnRestart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent in = new Intent(v.getContext(), Quiz.class);
            startActivityForResult(in, 0);
        }
    });

    btnShare = (Button)findViewById(R.id.btnShare);

    btnShare.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
            sharingIntent.setType("text/plain");
            String shareBody = "check out this app";
            sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
            sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
            startActivity(Intent.createChooser(sharingIntent, "Share via"));


        }
    });


  }

}

現在，在最后的活動中，我想要一個代碼，例如：

如果在activity1（Quiz1）中選擇了選項1或2（如在選中的單選按鈕中一樣），

測驗2：選項2或4

測驗3：選項1或4

測驗2：選項2或3

等等...

然后將textview更改為特定的內容，例如“您的字符是x”

我已經將所有信息帶到了最后一堂課，盡管聽起來很簡單，但我只是不知道如何解決這個問題。

任何幫助，將不勝感激，謝謝您<3

編輯：

TextView textviewResult = (TextView) findViewById(R.id.textViewResult);
    if(bundle.getString("rg").equals("A")||(bundle.getString("rg").equals("B")&& bundle.getString("rg1").equals("B")&& bundle.getString("rg2").equals("Long range weapons")
            && bundle.getString("rg3").equals("C") || bundle.getString("rg3").equals("D") && bundle.getString("rg4").equals("A")||bundle.getString("rg4").equals("B")
            || bundle.getString("rg4").equals("CC") && bundle.getString("rg5").equals("A") || bundle.getString("rg5").equals("E")
            && bundle.getString("rg6").equals("Yes"))) {
        textviewResult.setText("x");

    }else{
        textviewResult.setText("not x");
    }

這樣做的問題是，即使我為rg選擇了另一個選項（因此也沒有選擇“ A”或“ B”選項），但是對於其余部分，我選擇了If語句中的選項，但最終還是說x（但是應該說不是x）

Answer 1

您可以在if語句中使用String equals（）方法。 如果兩個字符串相等，則返回true。

例如：

if(bundle.getString("rg").equals("YourRadioButtonText")){ ... }

您的代碼可能看起來像這樣：

    `public class Final1 extends Activity {

Button btnRestart;
Button btnShare;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.final1);

    Bundle bundle = getIntent().getExtras();

    TextView textView = (TextView)findViewById(R.id.txt);
    textView.setText(bundle.getCharSequence("rg"));

    TextView textView1 = (TextView)findViewById(R.id.txt1);
    textView1.setText(bundle.getCharSequence("rg1"));

    TextView textView2 = (TextView)findViewById(R.id.txt2);
    textView2.setText(bundle.getCharSequence("rg2"));

    TextView textView3 = (TextView)findViewById(R.id.txt3);
    textView3.setText(bundle.getCharSequence("rg3"));

    TextView textView4 = (TextView)findViewById(R.id.txt4);
    textView4.setText(bundle.getCharSequence("rg4"));

    TextView textView5 = (TextView)findViewById(R.id.txt5);
    textView5.setText(bundle.getCharSequence("rg5"));

    TextView textView6 = (TextView)findViewById(R.id.txt6);
    textView6.setText(bundle.getCharSequence("rg6"));

    // NEW

TextView textviewResult = (TextView) findViewById(R.id.resultTV);
if(bundle.getString("rg").equals("C")){
        textviewResult.setText("It is C");
}
else if(bundle.getString("rg1").equals("A") || bundle.getString("rg2").equals("B")){
        textviewResult.setText("It is A or B");
}
else if(bundle.getString("rg1").equals("C") && bundle.getString("rg2").equals("D")){
        textviewResult.setText("It is C and D");
}
else if(!bundle.getString("rg1").equals("A")){
        textviewResult.setText("It is not A");
}
else {
    textviewResult.setText("Mhhh");
}

// END



    btnRestart = (Button)findViewById(R.id.restartBtn);

    btnRestart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent in = new Intent(v.getContext(), Quiz.class);
            startActivityForResult(in, 0);
        }
    });

    btnShare = (Button)findViewById(R.id.btnShare);

    btnShare.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
            sharingIntent.setType("text/plain");
            String shareBody = "check out this app";
            sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
            sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
            startActivity(Intent.createChooser(sharingIntent, "Share via"));


        }
    });


  }

}`